Machine shop: arc & gas welding; surface & OD grinding; general & CNC machining; mill & lathe work; drilling, boring, cutting & honing Gaseous fuels and additives, Fuel additives, Gaseous fuels, Coating machines, Extruders, Injection molding machines, Rubber or plastic presses, Thermo forming machines, Vacuum molding machines, Vulcanizing machines, Plastic cutting machinery